I think in general IPEC is always the framework for projects. What I’ve been told is that this cycle is typically disrupted when other people (usually higher-ups) hand you unexpected challenges and force you to do something.Speaking as something who’s worked under a rather lax project manager, I can say that a project with a very short planning phase can definitely be done, and will shave off some time if necessary. This does increase the risk however, and luckily for us it panned out with very few setbacks. I can’t say the same for the people who picked up where our project left off however, considering they had very little documentation to read up on.